How do we add background and specify its selected color to a view cell for UWP platform on Xamarin forms

I would like to change the selection color of a listview on uwp.

As I am new to uwp I did some reading and I think the way to go about doing this is to declare a custom renderer and in it specify the style

public class MyListViewRenderer : ListViewRenderer
    {
        protected override void OnElementChanged(ElementChangedEventArgs<ListView> e)
        {
            base.OnElementChanged(e);
            if (Control != null) Control.Style = (Windows.UI.Xaml.Style)App.Current.Resources["Listviewstyle"];
        }
    }

And add the following to my app.xaml

            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ListView">
                        <Border x:Name="grid"
                                Background="YellowGreen"
                                Padding="{TemplateBinding Margin}">
                            <ScrollViewer x:Name="ScrollViewer"
                                          TabNavigation="{TemplateBinding TabNavigation}"
                                          HorizontalScrollMode="{TemplateBinding ScrollViewer.HorizontalScrollMode}"
                                          HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}"
                                          IsHorizontalScrollChainingEnabled="{TemplateBinding ScrollViewer.IsHorizontalScrollChainingEnabled}"
                                          VerticalScrollMode="{TemplateBinding ScrollViewer.VerticalScrollMode}"
                                          VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}"
                                          IsVerticalScrollChainingEnabled="{TemplateBinding ScrollViewer.IsVerticalScrollChainingEnabled}"
                                          IsHorizontalRailEnabled="{TemplateBinding ScrollViewer.IsHorizontalRailEnabled}"
                                          IsVerticalRailEnabled="{TemplateBinding ScrollViewer.IsVerticalRailEnabled}"
                                          ZoomMode="{TemplateBinding ScrollViewer.ZoomMode}"
                                          IsDeferredScrollingEnabled="{TemplateBinding ScrollViewer.IsDeferredScrollingEnabled}"
                                          BringIntoViewOnFocusChange="{TemplateBinding ScrollViewer.BringIntoViewOnFocusChange}"
                                          AutomationProperties.AccessibilityView="Raw"
                                          Background="BlueViolet">

                                <ItemsPresenter   
                                    Header="{TemplateBinding Header}"
                                    HeaderTemplate="{TemplateBinding HeaderTemplate}"
                                    HeaderTransitions="{TemplateBinding HeaderTransitions}"
                                    Footer="{TemplateBinding Footer}"
                                    FooterTemplate="{TemplateBinding FooterTemplate}"
                                    FooterTransitions="{TemplateBinding FooterTransitions}"
                                    Padding="{TemplateBinding Padding}" />
                                </ScrollViewer>
                                <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="CommonStates">
                                    <VisualState x:Name="Normal" />
                                    <VisualState x:Name="Disabled">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="grid"
                                                                           Storyboard.TargetProperty="Opacity">
                                                <DiscreteObjectKeyFrame KeyTime="0"
                                                                        Value="0.5" />
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                                <VisualStateGroup x:Name="SelectedState">
                                    <VisualState x:Name="Selected">
                                        <Storyboard>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="borderSelected"
                                                                           Storyboard.TargetProperty="Visibility">
                                                <DiscreteObjectKeyFrame KeyTime="0"
                                                                        Value="Visible" />
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="grid"
                                                                           Storyboard.TargetProperty="Background">
                                                <DiscreteObjectKeyFrame KeyTime="0"
                                                                        Value="Red" />
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ScrollViewer"
                                                                           Storyboard.TargetProperty="Background">
                                                <DiscreteObjectKeyFrame KeyTime="5000"
                                                                        Value="Red" />
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Unselected">
                                        <Storyboard>

                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="borderSelected"
                                                                           Storyboard.TargetProperty="Visibility">
                                                <DiscreteObjectKeyFrame KeyTime="0"
                                                                        Value="Collapsed" />
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="grid"
                                                                           Storyboard.TargetProperty="Background">
                                                <DiscreteObjectKeyFrame KeyTime="0"
                                                                        Value="Transparent" />
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ScrollViewer"
                                                                           Storyboard.TargetProperty="Background">
                                                <DiscreteObjectKeyFrame KeyTime="0"
                                                                        Value="Transparent" />
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>

                            </VisualStateManager.VisualStateGroups>

                        </Border>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

by doing so I was able to change the background color of my listview, however my real goal was to change the selected color of the listview and not its background color.

After experimenting I think the so called view cell(Xamarin forms term) for the UWP listview is actually represented by the itemspresenter portion in the app.xaml code. But this itemspresenter does not have any background color property and I am also not sure how to go about doing this. I even tried playing with the visual states but to no avail.

Any kind soul able to help me out with this?